वर्गमूल सर्पिल में (OA=1) और (AB=1) हो तथा \(AB \perp OA\), तो (OB) की लंबाई क्या होगी?

In a square root spiral, if (OA=1), (AB=1), and \(AB \perp OA\), what is the length of (OB)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

B. \(\sqrt{2}\)

Step 1

Concept

By Pythagoras theorem, \(OB^2=1^2+1^2=2\), so \(OB=\sqrt{2}\). In exams, identify the right triangle first.

Step 2

Why this answer is correct

The correct answer is B. \(\sqrt{2}\). By Pythagoras theorem, \(OB^2=1^2+1^2=2\), so \(OB=\sqrt{2}\). In exams, identify the right triangle first.

Step 3

Exam Tip

पाइथागोरस प्रमेय से \(OB^2=1^2+1^2=2\), इसलिए \(OB=\sqrt{2}\)। परीक्षा में समकोण त्रिभुज को पहले पहचानें।

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Mathematics Answer, Explanation and Revision Hints

वर्गमूल सर्पिल में (OA=1) और (AB=1) हो तथा \(AB \perp OA\), तो (OB) की लंबाई क्या होगी? / In a square root spiral, if (OA=1), (AB=1), and \(AB \perp OA\), what is the length of (OB)?

Correct Answer: B. \(\sqrt{2}\). Explanation: पाइथागोरस प्रमेय से \(OB^2=1^2+1^2=2\), इसलिए \(OB=\sqrt{2}\)। परीक्षा में समकोण त्रिभुज को पहले पहचानें। / By Pythagoras theorem, \(OB^2=1^2+1^2=2\), so \(OB=\sqrt{2}\). In exams, identify the right triangle first.

Which concept should I revise for this Mathematics MCQ?

By Pythagoras theorem, \(OB^2=1^2+1^2=2\), so \(OB=\sqrt{2}\). In exams, identify the right triangle first.

What exam hint can help solve this Mathematics question?

पाइथागोरस प्रमेय से \(OB^2=1^2+1^2=2\), इसलिए \(OB=\sqrt{2}\)। परीक्षा में समकोण त्रिभुज को पहले पहचानें।